Answer:
The covalent bond in Cl₂ is break and combine with sodium to form NaCl through ionic bond.
Explanation:
Chemical equation:
Na + Cl₂ → NaCl
Balanced chemical equation:
2Na + Cl₂ → 2NaCl
The given reaction indicate the formation of sodium chloride.
Sodium chloride is an ionic compound. It is formed by the reaction of chlorine and sodium. The type of bond in Cl₂ is covalent. Both chlorine atoms are tightly held together through sharing of electrons. When sodium chloride is formed the covalent between the chlorine atoms are break and it react with sodium . The chlorine toms thus gain the one electron from the sodium atom and became negative ion while sodium by losing its one valance electrons became positive ions. The strong electrostatic forces are develop between them and ionic bond is formed.
The molar mass of magnesium is 24.305 g/mol
Answer:
The Correct answer would be A.
cellulose-based cell wall that makes these cells sturdy.
Explanation:
Every other option does not make sense mitochondria makes energy through cellular respiration not photosynthesis.
The nucleus is like the brain of a cell, does not use photosynthesis
cellulose is not part of the cytoplasm, it's part of the cell wall
Chloroplast is responsible for photosynthesis
If you wanna know density then:
Density = mass/volume = 16.31/8.29 = 1.96 g/mL.
Hope this helps!
Answer:
a) decrease
b) increase
c) decrease
Explanation:
a) The density of water <u>decreases</u> as water changes from liquid to steam.
The density of substances are higher when their molecules are very close to each other having strongest bonding forces. When water is change from liquid to steam it means water molecules are not close to each other as they are in liquid state because now water is changed into gaseous form and molecules are further apart from each other. Thus, density goes to decrease.
b) As the temperature increases, the rate of diffusion of a gas<u> increase.</u>
As temperature increases molecules gets more kinetic energy and rate of diffusion increases.
c) At constant volume, if the temperature of a gas is decreases, its pressure <u>decreases.</u>
According to Gay-Lussac Law,
The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.
Mathematical relationship:
P₁/T₁ = P₂/T₂
As temperature decreases its pressure also goes to decrease and vice versa.